Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael P. Walsh0
Date of Patent
September 12, 2006
0Patent Application Number
106831190
Date Filed
October 14, 2003
0Patent Primary Examiner
Patent abstract
A platform ladder comprising two elongate ladder sections having feet at one end and an upper end, the upper end of each section being hinged to an upper rail, a platform pivotally secured to one ladder section below the upper end and adapted to interconnect with the other ladder section, and stays interconnecting each side of the ladder sections whereby when the ladder is in an operative position with the ladder sections assuming an erect A shaped profile with the platform extending between the ladder sections to define a standing platform, the ladder sections, upper rail and stays, define a four bar linkage.
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